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/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
Close.c
Abstract:
This module implements the File Close routine for Raw called by the
dispatch driver.
Author:
David Goebel [DavidGoe] 18-Mar-91
Revision History:
--*/
#include "RawProcs.h"
#ifdef ALLOC_PRAGMA
#pragma alloc_text(PAGE, RawClose)
#endif
NTSTATUS
RawClose (
IN PVCB Vcb,
IN PIRP Irp,
IN PIO_STACK_LOCATION IrpSp
)
/*++
Routine Description:
This is the routine for closing a volume.
Arguments:
Vcb - Supplies the volume being queried.
Irp - Supplies the Irp being processed.
IrpSp - Supplies parameters describing the read
Return Value:
NTSTATUS - The return status for the operation
--*/
{
NTSTATUS Status;
BOOLEAN DeleteVolume = FALSE;
PAGED_CODE();
//
// This is a close operation. If it is the last one, dismount.
//
Status = KeWaitForSingleObject( &Vcb->Mutex,
Executive,
KernelMode,
FALSE,
(PLARGE_INTEGER) NULL );
ASSERT( NT_SUCCESS( Status ) );
Vcb->OpenCount -= 1;
if (Vcb->OpenCount == 0) {
DeleteVolume = RawCheckForDismount( Vcb, FALSE );
}
(VOID)KeReleaseMutex( &Vcb->Mutex, FALSE );
if (DeleteVolume) {
IoDeleteDevice( (PDEVICE_OBJECT)CONTAINING_RECORD( Vcb,
VOLUME_DEVICE_OBJECT,
Vcb));
}
RawCompleteRequest( Irp, STATUS_SUCCESS );
UNREFERENCED_PARAMETER( IrpSp );
return STATUS_SUCCESS;
}
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